/* ============================================================================
   AKKATT - Auth (Login/Registrazione/OTP/Onboarding)
   ============================================================================ */

.auth-card {
  border: none;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

/* --- Griglia OTP a 6 cifre --- */
.otp-grid {
  display: flex;
  gap: 0.5rem;
  justify-content: space-between;
}

.otp-box {
  width: 3rem;
  height: 3.25rem;
  font-size: var(--font-2xl);
  font-weight: var(--font-semibold);
  text-align: center;
  padding: 0;
}

@keyframes otp-shake {
  10%, 90% { transform: translateX(-1px); }
  20%, 80% { transform: translateX(2px); }
  30%, 50%, 70% { transform: translateX(-4px); }
  40%, 60% { transform: translateX(4px); }
}

.otp-grid--error .otp-box {
  border-color: var(--accent-red);
  animation: otp-shake 0.4s ease-in-out;
}

/* --- Onboarding wizard full-screen --- */
.onboarding-body {
  margin: 0;
  overflow: hidden;
}

.onboarding {
  --onboarding-parallax: 0;
  position: relative;
  width: 100vw;
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(180deg, var(--primary-light) 0%, var(--bg-main) 60%);
  overflow: hidden;
  padding: 2rem;
  box-sizing: border-box;
  padding-top: max(2rem, env(safe-area-inset-top));
  padding-bottom: max(2rem, env(safe-area-inset-bottom));
}

.onboarding__wave {
  position: absolute;
  left: -10%;
  width: 120%;
  height: 60%;
  border-radius: 50%;
  opacity: 0.5;
  transition: transform 0.5s ease-out;
  pointer-events: none;
}

.onboarding__wave--back {
  bottom: -30%;
  background: var(--primary-light);
  transform: translateX(calc(var(--onboarding-parallax) * -3%));
}

.onboarding__wave--front {
  bottom: -40%;
  background: var(--primary);
  opacity: 0.12;
  transform: translateX(calc(var(--onboarding-parallax) * 4%));
}

.onboarding__skip {
  position: absolute;
  top: max(1.25rem, env(safe-area-inset-top));
  right: 1.25rem;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: var(--font-base);
  padding: 0.5rem 0.75rem;
  cursor: pointer;
  z-index: 2;
}

.onboarding__slides {
  position: relative;
  width: min(100%, 480px);
  text-align: center;
  z-index: 1;
}

.onboarding__slide {
  display: none;
  animation: onboarding-fade-in 0.35s ease-out;
}

.onboarding__slide.is-active {
  display: block;
}

@keyframes onboarding-fade-in {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.onboarding__icon {
  font-size: 4rem;
  margin-bottom: 1.5rem;
  line-height: 1;
}

.onboarding__slide h1 {
  font-size: var(--font-2xl);
  font-weight: var(--font-bold);
  color: var(--text-main);
  margin-bottom: 0.75rem;
}

.onboarding__slide p {
  color: var(--text-muted);
  font-size: var(--font-lg);
  line-height: var(--line-height-relaxed);
}

.onboarding__dots {
  display: flex;
  gap: 0.5rem;
  margin: 2rem 0 1.5rem;
  z-index: 1;
}

.onboarding__dot {
  width: 0.625rem;
  height: 0.625rem;
  border-radius: var(--radius-full);
  background: var(--border);
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
}

.onboarding__dot.is-active {
  background: var(--primary);
  transform: scale(1.2);
}

.onboarding__next {
  min-width: 200px;
  min-height: 3rem;
  z-index: 1;
}